The 1991-1995 era cover a large period of video game, with end of 16 bits era and beginning of 3d game. But you talking about NES, Gameboy, Gameboy Color and specific control of 8 bits systems (A and B) in your example, what about neo geo game, mega cd and full motion video game, 3DO with 3d games etc… ? So what kind of game is waited ? Retro game 8-16 bits style pixel art or more ?